Masterpiece Theater at 6 pm Sunday presents part six of Downton Abbey, Series II. The Spanish flu strikes Downton, disrupting one match, hastening another and transforming the fortunes of all. Mary, Sybil and Robert each confront a moment of truth. Anna and Bates know a moment of happiness.

Masterpiece Theater at 8 pm Sunday and 8 pm Saturday presents part seven of Downton Abbey, Series II. In the finale, the family gathers at Downton Abbey for Christmas.

Clinton: American Experience at 8 pm Monday and 7 pm Tuesday explores the story of an American president who rose from a broken childhood in Arkansas to become one of the most successful politicians in modern American history and one of the most complex and conflicted characters to ever stride across the public stage.

Nature at 7 pm Wednesday provides new insights into the lives of whales and dolphins in a visually powerful, engaging and entertaining format.

Arts in Context at 7:30 pm Thursday explores the making of Generous Art, an online gallery dedicated to raising money for nonprofits and artists, while going behind-the-scenes with the groups’ founder and some of the showcased artists.

Feeding Minds: Texas Takes on Hunger and Obesity at 8 pm Thursday is a news magazine-style documentary made possible through a grant from Blue Cross and Blue Shield of Texas. A project of Texas PBS, the program examines how hunger and obesity coexist, the challenges Texas communities face regarding these issues, and solutions that can be employed to combat them.

Chet travels to Spicewood to sip some coffee, swim in Krause Springs, go ziplining through the trees, and eat some delicious BBQ on The Daytripper at 9 pm Thursday.

Haunted Texas at 9:30 pm Thursday gives a half hour visual exploration into the history of Peyton Colony, Texas in the Texas Hill Country.

Winner of the 2010 Tony Award for Best New Musical, “Memphis” turns the radio dial back to the 1950s to tell the story of a white DJ named Huey Calhoun (Chad Kimball), whose love of music transcends racial lines and airwaves on Great Performances at 9 pm Friday.

Don’t be chicken! See how to start a coop of your own on Central Texas Gardener at noon Saturday. On tour, visit a chicken coop and vegetable garden where fresh eggs and organic food are on the menu every day.

Austin City Limits at 7 pm Saturday presents a night of Texas singer/songwriters with Robert Earl Keen and Hayes Carll.